- This is a 100% brand new access control power supply
- It is suitable for ZWD, all kinds of access controller and electric control lock
- It is made of durable and high material
- It has automatic protection function
- Input: AC 220V
- Output: DC 12V 3A
- With multi-functional design, this DC 12v power supply is suitable for ZWD, all kinds of access controller and electric control lock
- This regulated 12v power supply is designed and manufactured to meet the demands of access control installations today
- And this portable power supply is available in door, or can be plug in configurations
- Moreover, made of high quality material, this DC 12v power supply is durable for a long time use
- With the appropriate size and lightweight design, this DC 12v power supply is convenient and easy to install
Types of DC Power Supply?
- Batteries are a common source of DC power.
batteries + image by Warren Millar from Fotolia.com Electric current comes in two types: AC and DC. AC, or alternating current, switches rapidly from positive to negative and back again. It is used in power lines to transport electricity across large distances. DC, or direct current, power continuously flows in the same direction. DC power supplies provide power either straight from DC sources or else from AC sources that have been converted to DC.
Battery Power Supply
- A battery power supply is the simplest way of providing DC power. Batteries have chemical energy stored inside. When they are connected in a circuit, that chemical energy is converted into electrical energy, which powers the circuit. Batteries are all rated at a certain voltage, a measure of the amount of pressure the electricity creates in the circuit. They are also limited in the amount of amperage -- basically, the speed at which electricity can flow out of the battery -- that they can provide.
- Multiple batteries are wired in series to increase the voltage or in parallel to increase the amperage and the total lifespan of the battery pack. Series batteries are wired so that the negative terminal of one battery is wired to the positive terminal of the next in a line, whereas in a parallel circuit, all the positive battery terminals are wired together and all the negative terminals are wired together. For example, if 4 1.5 volt AA batteries are wired in series, they will produce 6 volts (1.5 x 4). If they are wired in parallel, they will be able to produce 4 times the amperage, or last for 4 times as long producing their normal amperage.
- Many electronic devices need DC power, but the electricity in power lines is AC. A rectifier circuit converts AC power directly to DC. A rectifier begins with a transformer. The electricity flows through a coil that is right beside a second coil of wire and an iron element called the core. The second coil of wire sometimes has fewer turns than the first coil, creating a step-down circuit: the voltage that comes out of the transformer is lower than the voltage that comes in. If the secondary coil has more turns, it steps up or increases the voltage.
- The output then goes through an electronic one-way valve called a diode. In a half-wave rectifier, electricity is only allowed to flow through the diode during the positive half of the AC wave. During the negative half, the diode closes. In a full wave rectifier, electricity is allowed to flow down a positive output during the positive half of the AC wave and down a negative output during the negative half of the wave. This creates two streams of electricity, one positive and the other negative. Initially, the electricity is very "bumpy" because it comes straight from an AC circuit. Other circuitry in the rectifier smooths it out to get continuous DC power.
- Many DC power supplies combine both batteries and rectifier circuits. For example, a computer power supply has a sophisticated rectifier in the power brick that takes AC current from the wall and converts it to very smooth DC voltage for the computer. This DC voltage charges up the laptop battery and powers the laptop. When the laptop is unplugged, it automatically switches to battery power until it is plugged in again.
- Similarly, the alternator in a car is a generator that produces AC power. This power is converted to DC and used to power the car's ignition, spark plugs, radio, air conditioning and other electronic systems, and to charge the car battery. The car battery, in turn, powers the starter motor and other systems when the engine is off, using the stored power produced by the alternator.
- 1 x Power Supply
General Model TA208C Spec Condition New Type Power Supply Parameters
Input: AC 220V
Output: DC 12V 3A
Compatibility Suitable for ZWD, all kinds of access controller and electric control lock Material Metal Features Features This is a 100% brand new access control power supply
It is made of durable and high material
It has automatic protedtion function
It is very useful in our daily life
Packaging Package Included 1 x Power Supply
If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Before that, please contact our Live Support to inform that.
In that case we will refund you the payment excluding actual shipping fees already incurred.
If the item is defective, please contact DinoDirect Live Support and send an email to us at email@example.com attached an image or video file clearly showing the defect of the product. And we will give you a response within 24 hours whether we will resend the item or refund the payment to you for compensation.
For customization, please consider carefully before ordering.Because we do not accept return and replacement.
|Unit Price||USD$ 43.11||USD$ 39.34||USD$ 36.17||USD$ 33.47||USD$ 31.15|
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DINODIRECT has a team of professional designers, who are all experienced in European and Western design and lead the latest trends in Europe and the United States wedding market design. Our designers are also experienced in customizing dresses; we can do whatever you ask to do on your dresses like Lace and beading. You can tell us your ideas on your dresses and we would like to help you make your ideal wedding dress. We will give you the design in 48 hours with all the unique and charming details.
100% Made to Measure Dresses
DINODIRECT.Produces tailor-made dresses to suit your needs. We ensure that all dresses are 100% handmade. Once you provide the accurate measurement of the details (See our measurement guide) to us, we will immediately start working on your wonderful, unique wedding dress.
DINODIRECT.com’sdresses are made of best material. DINODIRECT hires only the best dressmakers and experienced designers in china, who use the finest production techniques to create your dress.
The Best Price
DINODIRECT.com’s prices are a lot lower than retail prices. With the decades experience in wedding industry, we can offer you all kinds of dresses with the most reasonable prices. Our price varies from US$100-US$800 for some of the highest quality dresses found online.
Speedy Delivery Times
DINODIRECT will ship out your dress as soon as possible. It takes you about 30 days from the day you place your order to the day you receive it.
Q: Are the dresses made by your own factory?
A: DinoDirect has our own factory with over five years’ experience in making dresses.
Q:Is the price on your website real price, why it is much cheaper than market price?
A:Dinodirect manage our business with lower overhead than a retail store or a company. We needn't employ many different departments, and needn't pay the much fees for advertising, renting a store, asking other team for alteration etc. We are the one of largest professional wedding factory in China, and our clients can order dresses from our factory directly. Since we do not have to accommodate for these costs, we can pass the savings onto our customers.
Q: How to make sure the quality?
A:DINODIRECT.com’s dresses are made of best material. DINODIRECT hires only the best dressmakers and experienced designers in china, who use the finest production techniques to create your dress.We ensure that all dresses are 100% handmade.
Q:How do I place my order in this website?
A:You can view the catalog in our website. If you find anything you want to buy just take it to shopping cart and then go check out.
Q:How do I use the search option of your site?
A: You can search by color, by designer, by occasion, by dress type, by price, or by style number. You can search all those categories at once and even sort by price and popularity once you've filtered your dresses.
Q:Can you customize the size of my dress?
A:Absolutely – if our standard sizes don't work for you, we can make you a custom-sized dress for free,When you ordering, you’ll need to check the tab for “Custom size”,then fill in your size. Getting professionally measured is best, but if you want to do it yourself be sure to read our measuring guide first. Avoid common mistakes by doing the following:
1.Ask someone else to measure for you
2.Take measurements while wearing undergarments similar to what you’ll wear with the dress
3.Provide a bust measurement from the fullest part of your chest, not your bra size!
Q:Can I order this dress in a different style/fabric/length?
A: Of course you can. You can click" Custom Size" and then leave your request in "Item Remarks". We will make your dress by your request.
PS: Some dresses do not have “Item Remarks” Tag.
Q: If I buy 2 or more dresses at the same time, do I need to pay postage for twice or more?
A: If you order 2 or more dresses including accessories from our website and we can send them together to same address, you just need to pay for postage once.
Q: How will my item (s) be shipped?
A: All shipping information is outlined in our shipping page.
Q: How long is the delivery time?
A: Usually it takes 7-15 days to make wedding dresses and 1-2 days to check your dresses. The shipping time also differs in shipping methods. The fastest shipping - expedited shipping takes 5-6 days for the shipment. The standard shipping takes 5-9 days. The super saver shipping takes 15-20 days for the shipment. The sooner you place an order, the sooner we start preparing your dress. Thank you.
Q: Will my dress exactly match the color I see on your website?
A: There might be a slight difference between the actual dress’s color and what you see in the photo depending on your computer monitor’s display settings.
Q:Can I make changes to my order after I have paid for my order?
A:You can change your order within 48 hours after you have paid your order, by contacting DinoDirect Live Support and send an email to us at firstname.lastname@example.org, if more than 48 hours, we could not change your order any more.
Ensuring your order number is included.
Q: What should I do if the size doesn’t fit me perfectly?
A:If your size fluctuates or you want to modify the dress slightly, we always leave a few inches in the seams so that your local tailor can easily make alterations as needed. Dresses generally have a margin of 1 inches on either side of a seam. Flower detailing, beading or belts/ribbons may limit ability to let a dress out.
Q:How do I upgrade my shipping?
A: Simply respond to your confirmation email with the method you would like to change it to.
Q:How to Preserve my Dress?
A: In order to prevent the dress distorting and yellowing, you can choose professional dust bag to restore.
Q:What should I do if I have forgotten my password or my password does not work?
A: In our register page, please click “forgot my password”, you will receive an email. There will be a link in the email, click that link and reset your password. If you don’t receive the email, please check it again in your spam mail. Please contact with our Customer Service online if you don’t receive it indeed.
Bought this item on01-05-2011
- Other Thoughts: Wow - what a workhorse. Have had mine running for a couple of months now and this DC 12v Power supply works flawlessly!
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Bought this item on01-20-2011
- Other Thoughts: This DC 12v Power supply is good enough that I now have one for the camper and one for the house! Highly recommended.
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Bought this item on04-12-2011
- Other Thoughts: I ran the unit at 13.8v 22 amps for 16 hours to test it and although the rear heat sinks get quit hot, it seemed to have no problem.
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Bought this item on02-23-2011
- Other Thoughts: I purchased this Portable Power Supply to power my Lipo charger and after I burned out a 20 Amp power source. Meets all of my expectations.
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Andres Pera Salmon
Bought this item on02-08-2011
- Other Thoughts: Seriously surprised!!Was a bit sceptical judging from the size and weight of this Regulated 12v Power Supply. But when i received, my concerns had gone.
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